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Nov. 26, 1946'
'
MISCHIEBENDREIN
2,411,812
SEED ASPIRATOR FEEDER‘ ‘AND CLASSIFIER
7 Filed March 8, 1944
3 Sheets-Sheet .L
INVENTOR ;
'_'
Mathew Schz'ebendrez'n
BY Ma
‘ ATTORNEY
Nov. 26, 1946.
‘ I
M. SCHiEBENDREIN
‘
‘- '
2,411_,812
v
SEED ASPIRATOR FEEDER AND CLASSIFIER
‘Filed March‘ 8, 1944 v
3 Sheets-Sheet 2
INYENTOR; ’_
Maihew Schzebandrezn
BY
. a QED
ATTORNEY
‘
' Nov. 26, 1946.
'
‘ M. SCHIEBENDIREIN
2,411,812
SEED ASPIRATOR FEEDER AND CLASSIFIER
Fivled March 8, 1944
.
5 Shéets-Sheet 5
INVENTOR;
. Mathew JChieDendmin
>
- - . BYW
‘g
ATTORNEY -
‘
Patented Nov. 26, 1946
‘2,411,812
UNITED STATES PATENT OFFICE.
2,411,812
v
’ SEED ASPIRATOR FEEDER AND CLASSIFIER
Mathew Schiebendrein, St. Charles, Mo.
‘
' Application March 8, 1944, Serial No. 525,521
3 Claims.
(Cl. 209—146)
1
2
My invention has relation to improvements in.
seed aspiratcrs and it consists in the novel fea
tures of construction more fully set forth in the
speci?cation and pointed out in the claims.
of the rods is over the discharge lip N5’ of apron
l6 and allowed to fall through hopper housing
I-I’ into hopper H" over the baffles ll, [8 and
thence into discharge spout l9 into the open bot
, The object of the invention is to grade seed
tom of which there is a constant ?ow of air
according to weight by causing the seed to be
subjected to the action of an air aspirator where
superinduced by the action of the fan F, as will
be more clearly apparent in the description to
follow. The inclined‘ bottom Id of the spout H
is, preferably of glass, or some other highly pol
by the seed is carried along by the air column a
distance inversely in proportion to'its weight and
permitted to discharge into a successionof hop
pers-
.
.
.
10 ished material, so as to offer a minimum of re
sistance to the material ?owing over it and in- '
The manner in which this is accomplished will
be readily apparent from a detailed description
of the invention in connection with the accom
sure a steady, uniform ?ow of material to the
agitator I2.
It will be observed that there is a gate 2!] dis
panying drawings, in which:_
’
15 posed infront of the inclined bottom M of hop
Figure 1 is a combined side elevation and lon- ‘
per I i, which is mounted for vertical adjustment
gitudinal section; Fig. 2-is a vertical section on
the line 2-2 through the lower part of one of
the seed hoppers; Fig. 3 is a front. elevation of
the invention; and Fig. 4 is a. rear elevation '20
thereof.
so as to control the size of the throat 2| through
which the seed discharges to the agitator 12.
There is also a gate 22 mounted immediately in
front of the agitator l2 and above the lip N5’
of apron I6, whereby the opening 23 through
~
Referring to the drawings, H is a housing di
which the seed enters housing H’ may also be
vided by partitions i, l which divides the housing
into hopper compartments 2, 3, 4, 5 and 6 for
receiving the seed graded by weights'as will be
controlled. Thus the rapidity of the feed both
to and from agitator l2 may be regulated to har
monize with the rapidity of the segregating of
the seed and the subsequent grading operation.
more clearly brought out hereinafter. , Each of
the compartments 2 to 6 inclusive is provided
with a. discharge spout 2', 3', etc., adapted to be
closed by a ?ap valve 1, suspended at the upper
edge of the spout over a chute 8 open at the top
and having a ?anged neck 9 at the bottom to re
ceive a sack (not shown) in which the seed is
discharged.
'
i
The compartments 2 to 6 inclusive are succes
sively arranged towards the rear of the housing
H and adjacent to compartment 6 there is a com
partment Iii for receiving the lightest. of the
particles carried through the housing such as
dust, chaff, etc., which‘ pass in to a centrifugal
The front of hopper H’ has a hinged door D
that may be dropped in order to have access to
the interior of the hopper to clean the same. In
the cleaning operation the apron I6 is dropped to
its dotted position (Fig. 1) by moving the prop
p forwardly, as shown dotted.
»
Above hoppers 2 to 5 inclusive there is a ?ue
23, having an intake 24 immediately adjacent to
hopper H” and in communication therewith by
a passageway 25 within the hopper H". The
?ue 23 is connected to hopper compartments 2
to 5 inclusive by passageways 24, 25, 26and 27,
and immediately above the passageways 24 and
fan F connected to compartment [5. An outlet 40 25 are blocks 28 and 29 respectively. The blocks
pipe is connected to the fan F and leads in any
23;and 29 are slidingly mounted to and from
desirable manner into the atmosphere.
_ p
passageways 24- and 25 and have inclined upper
A second housing H’ is mounted at the front
surfaces 38 and'3l so as to provide suitable seed
' of housing H and has an intake spout ll located
receiving valleys 33 and 34.
slightly to the rear of a seed agitator l2 which 45
The opening through the discharge spout I9 is
comprises a plurality of rods l3, arranged cy
controlled'by a spring gate 35 which may be de
lindrically for the purpose of feeding the seed
flected by a thumb screw 36, so as to vary the
forwardly from the inclined bottom M of spout
opening through the spout. The seed that falls
through the spout l9 enters a hopper 37, termi
The agitator I2 is mounted on a shaft l5 which 50 nating‘ in a ?anged collar 38, which may be con—
H.
I
v
.
is adapted to be rotated in a clockwise’direction
at a speed of about 4 R. P. M. to advance the
seed over an apron l6 beneath the seed agitator
l2 and encompassing the same for slightly less
nectedjwithasack forreceiving seed.
.
.
At‘the top of the back wall 39 of housing H
is a damper 40, rotatively mounted on a shaft
4! whereby it may be opened and closed as de
than 90°. The seed will be lifted by the action 55 sired by means of connecting links 42 and 43, the
2,411,812
3
4
0, O, on each side thereof to admit air to the
agitating squirrel cage feed rotor in said cham—
ber between the ori?ce and chamber outlet and
seed and permits unimpeded movement of the
latter having its lower end connected to a slotted
seed into said chamber, a gate extending from
angle plate all by means of a thumb screw 45,
said spout to a point adjacent to but spaced from
whereby it may be clamped in whatever position
said inclined wall to form with said wall an ori
is necessary to give the desired draft through the
Pa ?ce through which the seed can pass into said
housing H.
chamber, said chamber having an outlet in the
Between passageway 25, and hopper compart
side wall thereof opposite to said ori?ce, and an
ment 2 is an air compartment C having openings
compartment C and to a by-pass B discharge
through an opening B’ into compartment 2.
The entrance to by-pass B is controlled by a
gate valve it’ which may be adjusted to restrain
the entrance to the by-pass B by means of a
lever connection 45' with a slotted bracket 41’,
the latter being mounted on the outer Wall of
housing H.
'
By referring to Figures 3 and 1i it will be seen
that a motor M is mounted on a platform 46 at
the rear of housing H; said motor having a shaft
ill carrying a pulley 138 on one end and connected
to suitable reducing gear as on the other, where
by pulley as is driven at a comparatively high
10 having its surface lying closely adjacent to the
inclined wall and bottom of the chamber, said
rotor rotating in the direction of flow of the seed
through said ori?ce and toward said chamber
outlet, and a fan in said classifying housing draw
ing air through said discharge outlet of the hop
per, across said passage and into the classifying
housing.
2. In a seed grading machine that has a seed
classifying housing, a feed hopper having a dis
charge outlet open to atmosphere and a passage
in communication with said housing, said hop
per including a substantially closed chamber hav
ing an inlet spout extending therefrom and be
ing open to atmosphere, said spout having a ver
gear as is driven at comparatively slow speed.
Step pulley Ei-ii is connected to pulley 5| by a belt 25 ticallyrinclined wall at its lower end that sup
ports the seed and permits unimpeded movement
52; the pulley 55 being mounted on shaft it‘) which
of the sect into said chamber, a gate extending
carries the seed agitator l2. Pulley t8 actuates
from said spout to a point adjacent to but spaced
fan pulley 53 by means of a belt
from said inclined wall to form with said wall
It will be noticed that in the sides of housing H
there are observation windows 55, 5t‘ and 51, 30 an ori?ce through which the seed can pass into
said chamber, said chamber having an outlet
through which the discharge of the seed into the
in the side wall thereof opposite to said ori?ce
receiving hoppers may be observed, with a View
and having a bottom which has a curved por
to making any adjustments that may be necessary
tion that extends up to said outlet, and an agitat
to obtain proper grading of the seed.
The operation of the invention is obvious from 35 ing squirrel cage feed rotor in said chamber be
tween the ori?ce and chamber outlet and having
the foregoing description but may be briefly set
speed while step pulley as connected to reducing
forth as follows:
'
As the seed is received from the farm it is fed
in any desirable manner into the spout i i, whence
it enters hopper H’ and is slowly fed over the lip
l6’ of apron id in to hopper H”. As the seed
leaves the hopper B" it encounters the upward
its surface lying closely adjacent to the inclined
Wall and the curved portion of the bottom of the
chamber, said rotor rotating in the direction of
?ow‘of the seed through said ori?ce and toward
said chamber outlet, and a fan in said classify
ing housing drawing air through said discharge
outlet of the hopper, across said passage and into
moving current of air passing through the flue 23,
the classifying housing.
so that only the heaviest seed will fall through
3. In a seed grading machine that has a seed
this air stream into hopper H. The seed that is
classifying housing, a feed hopper having a dis
carried into the ?ue 23 ?rst enters the valley 33
charge outlet open to atmosphere and a passage
where the next heaviest seed will be deposited to
in communication with said housing, said hop
fall into hopper 2, whence the seed moving on
per including a substantially closed chamber hav
successively encounters valleys 25 and 26 and the
ing an inlet spout extending therefrom and be
open top of hoppers 5 and 6. Obviously seed
ing open to atmosphere, said spout having a ver
carried over to hopper '5 would be the lightest
tically inclined wall at its lower end that supports
weight of seed, while any substances carried be
the seed and permits unimpeded movement of
yond the hopper 6 will be impurities and chaff to
the seed into said chamber, a gate extending from
be sucked out of the housing H by the action of
said spout to a point adjacent to but spaced from
the fan F.
said inclined wall to form with said Wall an ori?ce
By the action of my improved seed aspirator
through which the seed can pass into said cham
the seed is very accurately graded by weight, so
ber, said chamber having a gate that is spaced
that the seed company may pack the respective
from the bottom of the chamber and cooperates
grades into sacks according to grade. The seed
is also thoroughly cleaned by the action of the 60 with the bottom of the chamber to provide an out
let in the side wall of the chamber opposite to
air current passing through the flue; the said
said ori?ce, and an agitating squirrel cage feed
air current carrying with it all dust particles and
rotor in said chamber between the ori?ce and
chaff mixed with the seed as is initially charged
chamber outlet and having its surface lying close
into the apparatus.
ly adjacent to the inclined .wall and bottom of the
Having described my invention, I claim:
chamber, said rotor rotating in the direction of
1. In a seed grading machine that has a seed
flow of the seed through said ori?ce and toward
classifying housing, a feed hopper having a dis
said chamber outlet, and a fan in said classifying
charge outlet open to atmosphere and a passage
housing drawing air through said discharge outlet
in communication with said housing, said hopper
including a substantially closed chamber having 70 of the hopper, across said passage and into the
classifying housing.
an inlet spout extending therefrom and being
open to atmosphere, said spout having a vertically
MATHEW SCHIEBENDREIN. inclined wall at its lower end that supports the
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